Source code for NanoVNASaver.Analysis.BandStopAnalysis

#  NanoVNASaver
#
#  A python program to view and export Touchstone data from a NanoVNA
#  Copyright (C) 2019, 2020  Rune B. Broberg
#  Copyright (C) 2020,2021 NanoVNA-Saver Authors
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <https://www.gnu.org/licenses/>.
import logging

import NanoVNASaver.AnalyticTools as At
from NanoVNASaver.Analysis.BandPassAnalysis import BandPassAnalysis
from NanoVNASaver.Analysis.Base import CUTOFF_VALS

logger = logging.getLogger(__name__)


[docs] class BandStopAnalysis(BandPassAnalysis): def __init__(self, app): super().__init__(app) self.set_titel("Band stop filter analysis")
[docs] def find_center(self, gains: list[float]) -> int: return max(enumerate(gains), key=lambda i: i[1])[0]
[docs] def find_bounderies( self, gains: list[float], _: int, peak_db: float ) -> dict[str, int]: cutoff_pos = {} for attn in CUTOFF_VALS: ( cutoff_pos[f"{attn:.1f}dB_l"], cutoff_pos[f"{attn:.1f}dB_r"], ) = At.dip_cut_offs(gains, peak_db, attn) return cutoff_pos